Dimepheptanol is one of the phenylpiperidine series, an opioid receptor agonist, which is active as an opioid analgesic. It is also elaborated in a number of close analogues, derivatives or diastereoisomers with similar properties. Dimepheptanol is a synthetic narcotic analgesic that has no accepted medical use in the United States.

Dimepheptanol:
https://drugs.ncats.io/drug/NNB4I01PA7

A synthetic opioid pain reliever. Dimepheptanol is a mixture of two isomers, alphamethadol and betamethadol. These are also available separately, and this drug has three separate entries in many national and international lists of illegal drugs, which refer to the racemic mixture dimepheptanol, and the two optical isomers. Each of these isomers is itself a mixture of two isomers, and so there are in fact four isomers of dimepheptanol in total

Alphamethadol is a synthetic opioid analgesic. Alphamethadol is composed of two isomers itself, L-a-methadol, and D-a-methadol. L-α-methadol is an important active metabolite of levacetylmethadol (LAAM), a medication therapy for individuals addicted to opiates that provides an alternative to methadone. Isomers of Alphamethadol bind to and activate the u-opioid receptor; they are active as opioid analgesics.

Alphamethadol:
https://drugs.ncats.io/drug/XBD99QNI42

A synthetic opioid pain reliever. It is an isomer of dimepheptanol (methadol), the other being betamethadol.

Betamethadol is an opioid analgesic under international control according to the UN Single Convention 1961. Betamethadol is an isomer of the racemic mixture of dimepheptanol.

Betamethadol:
https://drugs.ncats.io/drug/57ANR1Z628

Betamethadol:
Synthetic opioid pain killer. It is an isomer of dimepheptanol (methadol), the other being alphamethadol.